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Molecular formula

C21H14ClN3O3

17 compounds have this formula on CompoundList.

Molar mass
391.81g/mol
Monoisotopic mass
391.0724Da
Atoms
42
Elements
5
Rings plus double bonds
16

The formula C21H14ClN3O3 describes a molecule made of 21 carbon atoms, 14 hydrogen atoms, 1 chlorine atom, 3 nitrogen atoms and 3 oxygen atoms. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.

Elemental composition

  • C Carbon × 2164.38%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 143.60%
    1.008 × 14 = 14.112 g/mol
  • Cl Chlorine × 19.05%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 310.72%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 312.25%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C21H14ClN3O3

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 17 of 17 compounds

2-(5-Chloro-2-nitrophenyl)-4-(4-methylphenyl)phthalazin-1-one chemical structure, C21H14ClN3O3, CAS 642429-76-3
2-(5-Chloro-2-nitrophenyl)-4-(4-methylphenyl)phthalazin-1-one
CAS 642429-76-3C21H14ClN3O3
3-(2-Chlorophenyl)-2-[(3-nitrophenyl)methyl]quinazolin-4-one chemical structure, C21H14ClN3O3, CAS 370869-62-8
3-(2-Chlorophenyl)-2-[(3-nitrophenyl)methyl]quinazolin-4-one
CAS 370869-62-8C21H14ClN3O3
5-[(6-Chloro-4-phenylquinazolin-2-yl)amino]-2-hydroxybenzoic acid chemical structure, C21H14ClN3O3, CAS 887197-80-0
5-[(6-Chloro-4-phenylquinazolin-2-yl)amino]-2-hydroxybenzoic acid
CAS 887197-80-0C21H14ClN3O3
N-[5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl]-3-phenoxybenzamide chemical structure, C21H14ClN3O3, CAS 865249-61-2
N-[5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl]-3-phenoxybenzamide
CAS 865249-61-2C21H14ClN3O3
1-(2-Chloro-4-hydroxyphenyl)-4-oxo-7-(pyridin-4-yl)-1,4-dihydroquinoline-3-carboxamide chemical structure, C21H14ClN3O3, CAS 164261-17-0
1-(2-Chloro-4-hydroxyphenyl)-4-oxo-7-(pyridin-4-yl)-1,4-dihydroquinoline-3-carboxamide
CAS 164261-17-0C21H14ClN3O3
2-[4-(4-Chlorophenyl)-5-phenyl-1H-imidazol-2-yl]-4-nitrophenol chemical structure, C21H14ClN3O3, CAS 312536-38-2
2-[4-(4-Chlorophenyl)-5-phenyl-1H-imidazol-2-yl]-4-nitrophenol
CAS 312536-38-2C21H14ClN3O3
(E)-[2-(3-Chlorophenyl)-4,5-dioxo-1-(pyrimidin-1-ium-2-yl)pyrrolidin-3-ylidene](phenyl)methanolate chemical structure, C21H14ClN3O3, CAS 371135-44-3
(E)-[2-(3-Chlorophenyl)-4,5-dioxo-1-(pyrimidin-1-ium-2-yl)pyrrolidin-3-ylidene](phenyl)methanolate
CAS 371135-44-3C21H14ClN3O3
(E)-(4-Chlorophenyl)[4,5-dioxo-1-(pyridinium-2-yl)-2-(pyridin-3-yl)pyrrolidin-3-ylidene]methanolate chemical structure, C21H14ClN3O3, CAS 350681-98-0
(E)-(4-Chlorophenyl)[4,5-dioxo-1-(pyridinium-2-yl)-2-(pyridin-3-yl)pyrrolidin-3-ylidene]methanolate
CAS 350681-98-0C21H14ClN3O3
2-(2-Chlorobenzyl)-1,3-dioxo-N-(pyridin-2-yl)-2,3-dihydro-1H-isoindole-5-carboxamide chemical structure, C21H14ClN3O3, CAS 1144444-49-4
2-(2-Chlorobenzyl)-1,3-dioxo-N-(pyridin-2-yl)-2,3-dihydro-1H-isoindole-5-carboxamide
CAS 1144444-49-4C21H14ClN3O3
2-(4-(3-Chlorophenyl)-5-phenyl-1H-imidazol-2-yl)-4-nitrophenol chemical structure, C21H14ClN3O3, CAS 370846-21-2
2-(4-(3-Chlorophenyl)-5-phenyl-1H-imidazol-2-yl)-4-nitrophenol
CAS 370846-21-2C21H14ClN3O3
N-(5-Chloro-2-hydroxyphenyl)-4-(4-oxoquinazolin-3(4H)-yl)benzamide chemical structure, C21H14ClN3O3, CAS 1190243-52-7
N-(5-Chloro-2-hydroxyphenyl)-4-(4-oxoquinazolin-3(4H)-yl)benzamide
CAS 1190243-52-7C21H14ClN3O3
N-(3-Chloro-4-(cyano(phenyl)methyl)phenyl)-2-nitrobenzamide chemical structure, C21H14ClN3O3, CAS 1387046-87-8
N-(3-Chloro-4-(cyano(phenyl)methyl)phenyl)-2-nitrobenzamide
CAS 1387046-87-8C21H14ClN3O3
N-[5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl]-2-phenoxybenzamide chemical structure, C21H14ClN3O3, CAS 865249-69-0
N-[5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl]-2-phenoxybenzamide
CAS 865249-69-0C21H14ClN3O3
N-[5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl]-4-phenoxybenzamide chemical structure, C21H14ClN3O3, CAS 865249-62-3
N-[5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl]-4-phenoxybenzamide
CAS 865249-62-3C21H14ClN3O3
N-(5-Chloro-2-hydroxyphenyl)-2-(4-oxoquinazolin-3(4H)-yl)benzamide chemical structure, C21H14ClN3O3, CAS 1219546-18-5
N-(5-Chloro-2-hydroxyphenyl)-2-(4-oxoquinazolin-3(4H)-yl)benzamide
CAS 1219546-18-5C21H14ClN3O3
5-[(7-Chloro-4-phenylquinazolin-2-yl)amino]-2-hydroxybenzoic acid chemical structure, C21H14ClN3O3, CAS 1394776-72-7
5-[(7-Chloro-4-phenylquinazolin-2-yl)amino]-2-hydroxybenzoic acid
CAS 1394776-72-7C21H14ClN3O3
4-Benzoyl-5-(3-chlorophenyl)-3-hydroxy-1-(pyrimidin-2-yl)-2,5-dihydro-1H-pyrrol-2-one chemical structure, C21H14ClN3O3
4-Benzoyl-5-(3-chlorophenyl)-3-hydroxy-1-(pyrimidin-2-yl)-2,5-dihydro-1H-pyrrol-2-one
C21H14ClN3O3

Frequently asked questions

What is the molar mass of C21H14ClN3O3?

The molar mass of C21H14ClN3O3 is 391.81 g/mol, calculated from standard atomic weights for 21 carbon atoms, 14 hydrogen atoms, 1 chlorine atom, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 391.0724 Da.

How many compounds have the formula C21H14ClN3O3?

CompoundList lists 17 compounds with the molecular formula C21H14ClN3O3, including 2-(5-Chloro-2-nitrophenyl)-4-(4-methylphenyl)phthalazin-1-one, 3-(2-Chlorophenyl)-2-[(3-nitrophenyl)methyl]quinazolin-4-one, 5-[(6-Chloro-4-phenylquinazolin-2-yl)amino]-2-hydroxybenzoic acid. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.

What is the degree of unsaturation of C21H14ClN3O3?

C21H14ClN3O3 has a degree of unsaturation of 16. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.